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Ecotoxicological information

Toxicity to other above-ground organisms

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Two reliable studies (Klimisch 2) were found on toxic effect of Se-enriched diets (selenium applied as seleno-DL-methionine) on reptiles. No significant effects were detected on the mortality, growth and egg production of Lamprophis fuliginosus (brown house snake) at 23 mg Se/kg food (dry mass; Hopkins et al., 2004) or on mortality and growth of the lizard Sceloporus occidentalis at 14.7 mg Se/kg food (dry mass; Hopkins et al., 2005). The information will be used as supporting information in the secondary poisoning assessment of Se.

Additionally, US EPA (2007) reports data on dietary toxicity for 10 mammal species based on food naturally enriched in Se or amended with Se, Na2Se, SeS2, Na2SeO3, Na2SeO4, K2SeO4, Se-methionine or Se-cysteine. The reported NOECoral values for growth, reproduction and mortality vary between 1 and 300 mg Se/kg food. These studies were not all screened for their reliability because no values below the critical NOECoral for birds (1 mg Se/kg food) were reported.

U. S. Environmental Protection Agency. (2007) Ecological Soil Screening Levels for Selenium, U.S. Environmental Protection Agency, Washington, DC, USA. pp. 180.